Intermittently-operating driving mechanism.



A. C LINDGREN & G. G. MANDT.

INTERMITTENTLY OPERATING DRIVING MECHANISM.

APPLICATION FILED NOV. I7. I913.

Patented Feb. 8, 1916.

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A. C. LINDGREN & G. G. MANDT. INTERMITTENTLY OPERATING DRIVINGMECHANISM.

APPLICATION FILED NOV. 17, 1913.

Patented Feb. 8, 1916.

awmewfow A. Clirwgr'en travel nrrnn snares PATENT Session.

ALEXUS Q'LINDGREN GUNDEIR G. MANDT, OF MOLINE, ILLINOIS, ASSIGNORS T0MOLIIIE PLOW COMIEANY, A COMORA'IION OF ILLINOIS.

mITTENTLY-OPEMTING DRIVING MECHANISM.

Specification of Letters Patent.

ori inal application filed December mammal No. 523,992. made and thisapplication filed November I '11, 1am. Serial-No. 801,520. 4

The present application is a division of an a plication file y usDecember 20th, 1909, S rialNo. 533,992.

The object'of the'i'nvention is to provide efiicient mechanisms forfeedin the loadcarr ing instrumentality' towar .a' point of disc argeand for p'redeterr'ninately varying the speed at which theinstrumentalit [travels and, thereby, vary the quantity 0 'mate- 'rialdistribute The invention resides, primarily, incom- -bi ning withanendless load-carrying apron,

means formovably supporting the same, means for actuatingthe apron, andmeans for controlling it 'at all times; whereby its operation ma beeffected and its rate of be instantly and conveniently changed to causethe apron to deliver any redetcrmincd' quantity of material'to :1

enter "within a given t1me.

While .we have herein referred to our invention as applicable tooperating the loadcarrying apronsof manure Spreaders, it is to beundcrstoodthat it may be em loyed in other connections, and that it is te intention herein to claim the inventionbroadly and as applicable forwhatever use it may be suitable.

In the accompanying drawings: Figure lie a fragmentary view, in,elevationof a manure 5 reader structure with our invention appliedthereto; Fig. 2 is a fragmentary view'in'plan, partly in section,thereof; Fig. '3. is a .view in vertical section,-on' the line 3 .3,.Fig. 2; and Figz'fi is a similarview .on the line.4- .4, Fig. 2. v -Inthe particular apphcation vof'ourj in- .yention to j. manure. vspreadcrs as :3 herein shown, the parts are mounted on a wagonbody 1which is su ported on ground- Iwheels, two of whicli 2, are illustrated.These wheels are connected by an axle 3 which constitutes the primarydriving instrumentality of our invention.

Upon cross-beams 4 are secured lon itudinal channel-bars 5 forsupporting an guiding an endless load-carrying apron 6. The apron, asusual, forms the bottom of the wagon-body and when in motion deliversits load to a beater-cylinder (not shown) disposed at the rear end ofthe we on and by which thematerial is distributed, and may beconstructed in 'any suitable manner. At the front and rear ends of thewagon-body, the apron passes around and is engaged by suitablesprocket-wheels, those at the rear a pearing in'the drawings and marked7.

base sprockets 7 are'carried by'a transyerse shaft'S mounted inappropriate bearin s.

I ounted on the axle 3, between one ofthe ound-wheels and thewagon-body, is a I iving-gear 9 arranged to mesh with a pinion 10shiftabl mounted on a countershaft 11 disposed in suitable bearings atthe sideslof the wagon-body. This pinion may be connected. to the shaftby means of a clutch 12 operated by a shifter-rod 12 that connects,through a swing-pressed arm 13, with a connecting-r0 14 attached at itsfront end to an o eratin and control-lever 15. The counter-s aft, w ienthus connected to the primary drive, is adapted to operate theapron-moving mechanism now to be described.

The sprocket-carrying shaft 8 is provided with a gear 16 with w ichmeshes a pinion 17 carried by the hub of a ratchet-wheel 18 that ismounted on a stub-shaft 19 suitably supported on the wagon-body. Theratchetwheel is ada ted to be actuated by a pair of oppositelyisposedpawls 20. These are preferably fpivotally mounted adjacent the free ends0 two arms 21 pivotally mounted on the stub-shaft and capable ofmovement thereon to cause the pawls to engage the teeth of the ratchetand rotate the same. In this manner, the pinion 17 (connected to theratchet) is actuated to drive the gear 16 and .sh'a ft 8. Preferably andas shown, the

pawl-carrying arms 21 are connected to and operated by" two'other arms22 whichar pivoted at their upper ends on a. bolt 23 located above vtheratchet-wheel. 23 is mounted in the end of a rockingmemher orwalking-beam 24 which is sustaine intermediate of its ends bya'shiftableblock" or fulcrum-element 25 and adapted to i be rockedon said elementby a connectingdink 26 attached to it at the end 0 )posite itsconnection with the arms 22. T is link is eong nected toand receivesmotion froni'a crank 27 mounted on the end of the counter-shaft 11. Thefulcrum-element 25'is' inounte'd (for 'to and shifte by thecontrol-lever 15 disposed at the front end of the wagon body.

As will now be seen, the'fari an geinent off ward movement of thecontrol-lever l5ja'cts (through 1 the connecti'n -r' od Mfarm' lB,shifter-rod 12" and date 12) first, to'conthe parts'i's su'chthat aredetermined fer-- .nect the primary, driving-instrumentalities' and,then, b its continued movement an through sai "rod 33,,to shift the;fulcrumelement on its su portand thereb "chan'e its osition in re ationto them s of t e wal ing-bam and v with respect to the ratchet-wheelandthe 'crank operate'd arm. In consequence, the fulcrum: "of thewalkingbeam is'shifted and this causes the beam to rock (through theaction of the crank-operated link) in a widcr' anglc, and, thus, to havea greater movement n relation to the arms that operate the pawls whichactuate the ratchet-wheel. As a result offlthe initial movement of thelever 15,'the driving arts are connected, whereupon the apron riveshaftis given an intermittent rotative movement to actuate the apron, causingit to present its load to the aforementioned beatercylinder. Obviously,the farther forward the control-lever is moved, the greater will be theangle of movement of the walkingbeam with consequent increase in speedof travel of the apron, with 'the'result that a greater amount ofmaterial is presented to the beater-cylinder in a. given time. By meansof the single control-lever 15, therefore, the driving parts are broughtinto opera't ion and the quantity of material 'distributed by themachineis definitely controlled and "predetermined. The rang'ecf feed of thematerial may, thus, be varied ap- -The bolt 1,17o,eaa

be seen that we have succeeded in devising a 3' feeding mechanism whichis well adapted to achieve the several objects and ends in view.

The structure is simple and compact inform and is particularly welladapted for manure Spreaders and the'like.

As many changes may be made in the construction and widely differentembodi; ments of the invention are ossible without de'p'artin'g'from thespirit t ereof, it is intended thata'll matter contained in the foregoing, description and shown in the accoman'ymg drawings shall beinterpreted as illustrative and uo'tin a limiting sense.

What-we claim is:

1. A transmission mechanism including a "driving' member; a drivenmember; am intermediate mechanism comprising a ratchet wheeldpera'tively connected with said driven member; means for actuating saidratchet wheel; a 911 port; a fulcrum inember shiftably mount'e on saidsupport;

a rocker arm mounted, intermediate its ends,

on 'said' fulcrum element, and'pivotally connected at one end with saidratchet wheel actuating means; means for connecting the opposite end ofsaid arm'and said drivm member; and means, connected with sai ratchetwheel actuat ng means, for maintaining them in predetermined operativere- 2. A transmission mechanism including a drivin member; a drivenmember; and 1nteifme' iate mechanism comprising a ratchet wheeloperative'ly connected with said driven member; means for actuating said'ratchetwheel; a support; a fulcrum mem her shiftably mounted on saidsupport; a

rocker arm mounted, intermediate its ends, on said fulcrum element, andpivotally connected at one end with said. ratchet wheel actuating means;means for connecting the opposite endof said arm and said drivingmember; and a memberfhaving a fixed'pivot at one end onsaid support; theother end being connected 'witlisaid rocker arm and ratchet wheelactuating'me'ans.

A transmission mechanism including a drivin member; a driven member; andinterme iate mechanism comprising a ratchet wheel operatively connectedwith said dr ven member; means for actuating said ratchet wheel; asupport; a fulcrum member shiftably mounted on said support; a

'rocker arm mounted, intermediate its ends,

on said fulcrum element, and pivotally coniiectedjat'one end "with saidratchet wheel actuating means; means for connecting the opposite end ofsaid arm and said driving member means, connected with said rockeramt-and ratchet wheel actuating means,

for maintaining them in predetermined axial relation; and means forshifting said fulcrum on said support whereby the speed of said drivenmember is varied.

4. A transmission mechanism including a driving member; a driven member;and intermediate mechanism comprising a ratchet wheel operativelyconnected with said driven member; means for actuating said ratchetWheel; a support; a fulcrum member shiftably mounted on said support; arocker arm mounted, intermediate its ends, on said fulcrum element, andpivotally connected at one end with said ratchet wheel actuating means;means for connecting the opposite'end of said arm and said drivingmember; a member having a fixed pivot at one end on said support; theother end being connected with said rocker arm and ratchet wheelactuating means; and a controlling means connecting with said drivingmember and said fulcrum element to actuate one of said members and thenthe other.

5. A structure of the class described including a driving member; adriven member; driving mechanism for actuating said driving member;mechanism for transmitting motion between said driving and drivenmembers comprising a rocking member, a shiftable fulcrum-element uponwhich said rocking member is supported, a ratchetwheel, pawl-carryingarms supported on said rocking member and also on the axis of saidratchet-wheel, a crank-arm connectingrwith the opposite end of therockingmember and with said driving member, connections between saidratchet-wheel and said driven-member; and a controlling memberconnecting with said driving and motiontransmitting mechanisms andshiftable to actuate one of said mechanisms and, then, the other.

6. A transmission mechanism including a primary drive shaft; a secondarydrive shaft; driving connections between said shafts; a driven shaft; anintermediate connecting gear comprising a ratchet wheel mounted on anaxle and operatively connected with said driven member; a support;

a fulcrum element shiftably mounted on said support; a rocking armmounted, intermediate its ends, on said fulcrum ele ment; lazy-tongshaving oppositely disposed toggles secured axially with said ratchetwheel, and to one end of said rocker arm respectively; ratchet actuatingpawls disposed on the intermediate joints of said 1azy-tongs inoperative engagement with said ratchet wheel; a connection between theother end of said rocker arm and said drive shaft; a controlling deviceconnected with said fulcrum whereby it may be shifted to vary theoscillation of the links of the lazy-tongs and control the speed of thedriven member; a clutch mechanism interposed between said primary andsecondary drive shafts; and a controlling device connecting said clutchmechanism and said fulcrum element to actuate first one member and thenthe other.

7. A transmission mechanism including a primary drive shaft; a secondarydrive shaft; driving connections between said shafts; a driven shaft; anintermediate connecting gear comprising a ratchet wheel mounted on anaxle and operatively connected with said driven member; a rocking armmounted, intermediate its ends, on said fulcrum element; lazy-tongshaving oppositely disposed toggles secured axially with said ratchetwheel, and to one end of said rocker arm respectively; ratchet actuatingpawls primary and secondary drive shafts; a condisposed on theintermediate joints of said lazy-tongs in operative engagement with saidratchet wheel; a connection between the other end of said rocker arm andsaid drive shaft; a controlling device connected with said fulcrumwhereby it may be shifted to vary the oscillation of the lazy-tongs andcontrol the speed of the driven member; a clutch mechanism interposedbetween said trolling device connecting said clutch mechanism and saidfulcrum element'to actuate first one member and then the other; and asingle control lever connected with said clutch mechanism and saidfulcrum element, and actuatable to operate on said clutch mechanism fora part of its stroke; and to shift said fulcrum element to vary thespeed of the driven member during another portion of its stroke.

In testimony whereof we have affixed our Copies of this patent may beobtained for five cents each, by addressing the Commissioner of Patents,Washington, D. 0.

